<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="头像" />
      </div>
      <!-- 登录表单区域 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="iconfont icon-users"
          ></el-input>
        </el-form-item>
        <!-- 密码-->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            prefix-icon="el-icon-unlock"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮区域-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: "admin",
        password: "123456",
      },
      // 表单验证规则
      loginFormRules: {
        username: [
          { required: true, message: "请输入登录名称", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入登录密码", trigger: "blur" },
          {
            min: 6,
            max: 16,
            message: "长度在 3 到 16 个字符",
            trigger: "blur",
          }
        ]
      }
    }
  },
  methods:{
    resetLoginForm(){
        // 点击重置按钮，重新登陆表单
        // console.log(this)
        this.$refs.loginFormRef.resetFields();
    },
    login(){
        this.$refs.loginFormRef.validate(async valid=>{ 
            console.log(valid);
            if(!valid) return ;
            const {data:res}=await this.$http.post('login',this.loginForm);
            if(res.meta.status !== 200)return this.$message.error('登录失败')
            this.$message.success('登录成功');
            console.log(res);
            // t登录成功后oken保存到浏览器中的sessionStorage当中，
            window.sessionStorage.setItem("token",res.data.token);
            // 路由跳转到后台home
            this.$router.push("/home");
        
        }) 
    }
  }
};
</script>


<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  // x,y移动50%
  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.btns {
  display: flex;
  justify-content: flex-end;
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>